Real world weather problem.

When I try to get the real weather I get an error and am told to check my internet connection and configuration. I've since played multiplayer and can surf the internet fine. I removed the last add on that was installed just prior to this problem, to no avail. I occasionally had this problem in fs9 but a re-start of the sim or my computer would correct it, not so with fsx.
Anyone have any ideas on what to check or change? Thanks.
Anyone have any ideas on what to check or change? Thanks.